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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Fulczyk, M. Mydlikowski, R. |
| Copyright Year | 1986 |
| Abstract | The influence of changes in load conditions of the generator-transformer unit on the operating conditions of the 100% ground-fault protection of the generator stator winding based on the third-harmonic voltages was analyzed. The analyzed stator ground-fault protection system is by ratio of the voltages third harmonic in generator neutral and at the generator terminals. The third-harmonic voltages were determined on the base of the experimental tests (measurements) run in real conditions at changes in active and reactive load conditions of the generator. It was found that mainly the generator active load influences the voltage feeding the measuring element of ground-fault protection. Therefore, determining operating conditions of ground-fault protection the influence of the generator active and reactive load should be deeply considered. This can ensure the proper operation of the ground-fault protection based on the voltage third harmonics in the whole range of the changes in generator load. Considering the influence of changes in generator load on the third-harmonic voltages (feeding measuring element of the protection system) will allow eliminating irregular generator tripping as a result of unselective operation of these protections. |
| Sponsorship | IEEE Power Engineering Society |
| Starting Page | 158 |
| Ending Page | 165 |
| Page Count | 8 |
| File Size | 1070837 |
| File Format | |
| ISSN | 08858969 |
| Volume Number | 20 |
| Issue Number | 1 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2005-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Stator windings Protection Induction generators Harmonic analysis Circuit faults Breakdown voltage Testing Power generation Voltage measurement Fault location windings Digital measurements fault location harmonic analysis synchronous generators |
| Content Type | Text |
| Resource Type | Article |
| Subject | Energy Engineering and Power Technology Electrical and Electronic Engineering |
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